Yongnuo YN622N-TX is an i-TTL controller for Nikon-based 622N systems.
Recommended to use with YN622N II transceivers+compatible flashes or Yongnuo YN685 Speedlites for Nikon.
Being a part of the one of the most affordable solutions for wireless Nikon speedlites sync, Yongnuo YN622N-TX lets the photographer setup all the needed flash preferences directly on the device using comfortable set of buttons and LCD-display.